A 1.546 g sample of magnesium metal is heated in sufficient air at high temperature so that all of the magnesium reacts. The reaction forms 2.512 g MgO and a small quantity of another magnesium-containing compound that is 72.24% magnesium by mass and contains no oxygen. a) Determine the formula of the other magnesium-containing compound. b) Name this compound. c) Calculate the fraction of the original Mg present in this second compound.

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Q: solvent

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Q: A 14.40 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis…

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Q: Calculate the mass of iron in the solid unknown sample. total mass of K3Fe(C2O4)3 x 3H2O is =…

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Q: An elemental analysis of a compound containing S and O produce 50.00 % S and the rest is oxygen.…

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Q: You are given a 10.0 grams sample of ethanol (CH3CH2OH).   Explain how you can use the molar mass of…

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Q: An unknown compound contains 53.34% rhodium, 9.338% carbon, and the rest is oxygen. a) If you assume…

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Q: 5. Calculate the number of oxygen atoms present in 755.0 mg of nitrogendioxide gas.

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Q: Determine the number of hydrogen atoms in one mole of H₂O2. 3.01 x 1023 2.408 x 1024 5.2 x 1022 6.02…

A: An atom is a particle that contains protons and neutrons and is surrounded by electrons.

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.